holt and g



F. A. HOLT AND G. KERSHAW.

Patented July 29, 1919.

2 SHEETS-SHEET 1.

Inventos-- F. A. HOLT AND G. KERSHAW. THREAD 0R YARN TENSION DEViCE ANDCLEARER.

APPLICATION FILED OCT-25,1915.

Patented J lily 29, 1919.

2 SHEETSSHEET 2.

thread, cord. twine or the like.

FRANK ASHWORTH HOLT, 0F ROGHDALE, AND GRINDROD KERSHAW, 0F ITWORTH,

ENGLAN D.

LidlilAdS.

3 AD OR YARN TENSION DEVICE C Application filed October 25, 1915. SerialNo. 57.769.

To all whom it may concern Be it known that we, FRANK Asrrwoirrn HOLT, asubject of the King of the United Kingdom of Great Eritain and Ireland,and resident oi Noon Sun House, Nhitworth Road, Rochdale, in the countyof Lancaster, England, and Gnnvnnon lirnsiraw, a sub ect of the King ofthe Unit-ed Kingdom of Great Britain and Ireland, and resident of 62Market street, Whitworth, in county of Lancaster, England, have inventednew and use ful Improvements in T iread or Yarn Tension Devices andClearers, of which the fol lowing is a specification.

This invention relates to the kind of ap paratus for applying or tensiontoer cleaning yarn, thread, cord, twine or the like in which thematerial to be subjected to tension and cleaned is made to pass beneathand to revolve a disk or the like by being made to pass-between suchdisk or the like and a support beneath it.

This invention consists in a :form of apparatus of the said kind moreeiiicient and convenient than those heretofore provided in enabling theyarns, threads, cords, twine or the like subjected to drag or tension orcleaning to be wound at-any speed requisite in any case under properdrag or tension and cleaned without being subjected to excessive tensionand consists further in advantageous expedients hereinafter to beindicated, hindering or checking such disks or like revoluble parts frombeing revolved too freely and obviating the too frequent or tooprotracted rise of disks or the like made to bear on yarn,

Hereinafter for simplicity the word yarn will be used instead of yarn,thread, cord, twine or the like and the word disk will be used in thedescription and the claims to mean a disk, cup or other like part to berevolved by contact with yarn, thread, cord,

twine or the like.

This invention is illustrated in the accompanying drawings byexemplifications. Figures 1 and 2 are respectively a side elevationpartly in vertical section and a plan and Figs. 9 and 10 a verticalsection and plan of parts detached, illustrating one form of tensionapplying or yarn cleaning apparatus provided according to this inventionand other forms are illustrated in Figs. 3-8and l1l8 both inclusive inwhich Figs. .6, l2, and let are plan views, Figs 15 and 17 are planviews of the upper disks inverted and the rest are all vertical sectionsor vertical sections partly in side elevation to show parts more clearlyand indicating how some of the expedients may be applied in forms oftension device other than that shown by Figs. 1 and 2-.

Figs. 1 and2 serve also as an illustration of one way in which the partsprovided according to this invention may be mounted for use in themachines to which they are to be applied.

in the apparatus illustrated in Figs. 1 and 2, a disk j is mountedaround and supported by the apex of a fixed pivot or projection carriedby afixed part f and is provided with a non-circular disk a mounted uponit so that yarn maybe led between the disks y and a. The disk j isprovided with an upwardly extending projection p in which the hole toreceive the pivot or projection 71;

is formed and around which the disk a is placed.

may be made with a projection shaped and.

fitted to engage a corresponding space in the other of shape and size topermit the one disk to move athwart the axes of revolution relatively tothe other while both disks are 21] ways compelled to revolve turn forturn together.

Further according to this invention a fixed projection or abutment ofany kind may be placed near the disks so that one or each disk may swingagainst such projection or abutment in the lateral movement of suchdisk. The projection or abutment may be made to extend over the disks tohinder or prevent them or the upper one from being accidentallydislodged from their or its proper working position and may be shaped sothat the upper disk may be placed upon the projection or abutment beforeor while the lower disk is being put into or removed from its ordinaryWorking position.

in Figs. 9 and 10, the sleeve of the disk j is shown as square in theupper part 1 and circular, to simplify manufacture, in the part 2 belowthe square part and the disk a and of such width that the disk a will beturned with the disk j and long enough to allow the disk at to be moveddiametrlcally upon the disk j., in Figs, 1, 2 and 9, a projection w,omitted from Fig. 10, for parts below it to be shown, is illustrated assecured to the fixed part f and extending upward therefrom near thesides of the disks j and a.

In Figs. 1 and 9., the pivot or projection is and the hole in the sleeve32 to receive the pivot or projection it are indicated as cylindricaland fitting one another.

The fixed part f forms part of a bracket A which is provided with a holeto receive a rod B and a set screw A by which it is secured upon suchrod B.

The bracket A is shaped so as to afford a notch I to act as a guide foryarn and also to aflord a fence J extending around part of thecircumference of the disk j in order that yarn may be hindered frompassing below the disk 7'. A wire curl K screwed into the bracket A isprovided as a guide for yarn at the side of the disk j away from thenotch I. The bracket A and curl K form no part of this invention.

Yarn drawn through the notch I and the curl K or in the oppositedirection will pass between the disks and a and revolve them and thefriction of the yarn against the disks causes drag or tension to beapplied to the yarn and effects the removal of loose matter from theyarn so cleaning it. The disk 7' with a sleeve p prevents dust fromreaching the bearing of the disk 9' on the pivot It. Should the yarnpassing beneaththe disk (1 revolve the'disks a and j at a speedsufiicient to throw the disk (1 out at one side it will arrive againstthe projection to and be checked in its revolution and thus the disks'1' and a will be prevented from revolving too rapidly and allowing yarnto pass too freely between them. The projection -'w is provided/with anarm extending over the sleeve p of the disk j so as to prevent the disksfrom being accidentally removed from the pivot k.

The projection w is made so that it may be removed from the part f inany convenient manner when it is necessary or desirable to remove thedisk a or disk j from the pivot For example the projection w may bescrewed into a screw threaded hole in the part f, as shownin Fig. 9.

The hole in the disk 1' may be made if desirable in any case a littlelarger than the pivot or projection 72 so that the disk may move orwabble laterally in relation to and bind more readily upon the pivot orprojection so as to be checked in its revolution or the pivot is or thehole in the disk 7' to receive it or both of-them may be made taper asfor example in modes analogous to those hereinafter demribed inreference to Figs. 7 and 8. The provision for lateral movement orwabbling is preferably made 32 may have less about which it or'they isor are to be made,

to revolve may be provided to be applied in or on the upper disk whetheror not the upper disk or the lower disk or both is or are'madeunsymmetrical or out of balance.

Making a disk unsymmetrical or out of balance with relation to its axisof rotation or non-circular or weighting it with a weight or washerwhich is unsymmetrical or out of balance with relation to its axis ofrotation insures that any incipient increase in speed of revolution ofthe disk shall be accompanied by an increased tendency of the disk tolateral movement causing, according to the construction adopted in anycase, lateral movement of the disk or increased pressure of the diskagainst its support or, in the case of adisk mounted on another disk,lateral movement of one or other disk or both or increased pressure ofthe one or other disk or both against its or their support or arrival ofthe disk or one or other disk against the stop if there be any providedfor checking it from revolving and thus in any case the incipienttendency of the disk or disks tounduly rapid revolution for example anunsymmetrical mass may be provided at one place or more or one part ormore may be removed or the disk or washer or weight may be bent orindented.

An unsymmetrical weight or washer or two or more applied to asymmetrical or unsymmetrical disk may be used along with a madeunsymmetrical or out of balance or provided with a washer or weight or,two or more made unsymmetrical or out of bal: time as aforesaid and madeto revolve by the yarn forming in themselves part of this-in.- ventionprovision is made {9r some movement of part of the disk athwart its axissymmetrical weight orwasher or two -or ;more and a symmetrical weight orwasher ;or two or more may be applied to an unsymmetrical disk.

In specially advantageous forms of disk either transversely to that axisor into positions oblique to one another so that the disk may revolveeccentri'cally or wabble or swing in revolving. The provision for thismovement of the disk may be made for example by the hole in the disk orthe hole to receive the spindle of the disk being larger than the partto be received in it or by the hole being taper while the part to bereceived in it is cylindrical or vice-versa or by the hole and the partto be received in it being of different tapers.

Ordinarily if a disk having a bearing in its upper part is to be allowedto move laterally or to wabble. or swing in revolution provisionorclearance to allow lateral movement is made in its lower part so thatthe position of its higher part does not much change.

If provision be made for a disk to move in the direction of its axis ofrevolution this provision may be accompanied by greater opportunity forthe disk to be moved transversely or to become oblique to the part on orin which it is mounted so that in moving in one direction along thataxis in use it may revolve more and more eccentrically. This may beeffected byproviding a conical or other'taper pin or projection toreceive a disk or providing a disk with a conical or other taper pin orspindle.

Fig. 3 il ustrates an apparatus wherein the disk a is unsymmetrical,being made eccentric relatively to the pivot I), while the disk j issymmetrical and provided with an orifice C larger in diameter than thepivot b, so as to be movable laterally relatively to the pivot b.

Fig. t illustrates an apparatus wherein the disk j is unsymmetrical andthe disk a is symmetrical.

The disk a is shown provided with weights or washers 0.

In Fig. 5 two disks a 7' generally similar to the disks a 7' shown inFigs. 1 and 2 are illustrated as provided with two unsymmetrical weightsor washers 0 applied in the disk at around the sleeve Z thereof.

Fig. 6 illustrates a disk a made unsymmetrical by being indented at oneside. Weights of a shape enabling them to be placed in the indented diska maybe employed if desirable to increase the pressure upon yarn passedbeneath the disk at.

In Fig. 7 hereinafter further described a disk a made unsymmetrical bythe wall being thicker at one side 9 of the disk (2 than at the other isillustrated as applied to a disk which is symmetrical. In Fig. 8 alsohereinafter further described a disk j made unsymmetrical by the wallbeing thicker at one side 7' of the disk than at the other isillustrated having applied to it a symmetrical disk a.

In Figs. 5 and 7 the disk a is shown as formed with a hole H a littlelarger than the sleeve ;0 of the disk j so that the disk It may be movedlaterally relatively to the disk j in being turned upon it.

In Fig. 7. the pivot is shown as thicker at the top and tapers downwardwhile the hole to receive it in the sleeve 12 is cylindrical.

In Fig. 8 the pivot k is shown as cylindrical while the hole to receiveit in the sleeve 32 tapers from its mouth or entrance to the top.

In Figs. 7,and 8 it will be seen that the disks j having bearings intheir upper parts the provision of clearance to allow lateral movementis made in the lower parts so that the position of the higher parts doesnot much change.

Fig. 8 also shows a symmetrical Weight 0 in the disk a.

Figs. 11 and 12 illustrate a disk j generally similar to that shown inFig. 8 but formed with three holes t for the escape of dirt or othermatter separated from yarn. The holes t are separated by radial spokesformed with rightangled edges which-may scrape yarn brought againstthem.

Figs. 13 and 14 illustrate a disk y' gen erally similar to that shown inFig. 7 but formed with a hollow it around the sleeve 1) so that yarnpressed against it shall bear against the circumferential parts 12rather than against the central parts thereof, and with four holes t forthe escape of dirt or other matter separated from yarn. The holes t areseparated by spokes which being below.

the hollow u do 'not receive contact of yarn passed between the disk y'and the disk a used with it.

If desirable in any case to facilitate revolution by reducing thesurface of contact a .disk of a tension or yarn cleaning device formedor contrived in any of the ways hereinbefore described or in anycombination of such ways may be provided with a rib or projection orribs or projections or recess or recessesin the part to be in contactthe other disk as the case may be or the yarn to be subjected to tensionor cleaned. The disk used in any case may be beveled or rounded at theedges to facilitate the passage of yarn beneath or between it andanother, each of the disks shown in the accompanying drawings beingprovided with rounded edges.

Figs. 15 and 16 illustrate a disk a generally similar to that shown inFig. 7 but furnished on its lower face with ribs or projections y, sixbeing shown in Fig. 15 but for the sake of clearness only two in Fig.16.

By way of example of the provision of recesses Figs. 17 and 18illustrate a disk a generally similar to that shown in Fig. 7

' with the surface on which it is-to rest or but furnished in its lowerface with recesses 2, six being shown-in Fig. 17 but forthe sake ofclearness only two in Fig. 18.

An apparatus provided according to this invention may be provided withor employed along with any guide or guides requisite or convenient forguiding yarn to or from it. Dlsks made or contrived according to thisinvention may be made of an suitable metal I or alloy of or glass or'porce ain.

In any cases in which a washer or weight or two or more is or are to beapplied to a disk with a central hole, the inner circumference of thedisk is preferably provided. with a rim or flange as in the casesillustrated in Figs. 5, 6 but in other cases in which a disk is providedWith a central 'hole the inner circumference of the disk may be providedor not provided with a rim or flange as may be considered desirable.

It is to be understood from the preceding description of the difierentdisks provided according to this invention that difi'erent upper disksmay be used with difi'erent lower disks as may be desirable in thebuilding up of tension applying or yarn cleaning apparatus or from timeto time as may be desirable and that the provision for the applicationof a weight or washer is only essential in cases in which such provisionor such weight or washer is mentioned in the claims following.

Disks which are made unsymmetrical or out of balance as hereinbeforedescribed, especially if made capable of lateral movement or swinging orassuming positions oblique to one another, become checked in theirrevolution at a lower speed than disks which are symmetrical orbalanced.

,What we do claim as our invention and desire to secure by LettersPatent is 1. In a tension device, a support for a tension disk and arevoluble tension disk of unsymmetrical form carried thereby having itsmass unsymmetrical in relation to its axis of revolution and so tendingto lateral movement in revolution and being made movable athwart suchaxis, substantially as hereinbefore described.

2. In a tension device, a support for tension disks, two revolubletension disks carried thereby one of which is of unsymmetrical form andhas its mass unsymmetrical in relation to. its axis of revolution and sotend to lateral movement in revolution and is made movable athwart suchaxis, substantially as hereinbefore described.

3. In a tension device, a support for tension disks, two revolubletension disks of unsymmetrical form carried thereby, each of which hasits mass unsymmetrical in relation to its axis of revolution and sotends to lateral movement in revolution and is made movable athwart suchaxis, sub? stantially as hereinbefore described.

mineas 4. In a tension device comprising-a support for a revolubletension disk and a'revoluble tension disk carried thereby, a tensiondisk adapted to receive weighting means for adjusting the pressure ofsuch disk and weightingmeans applied to such disk and unsymmetrical inform and mass relatively to the axis of revolution of the disk when itis applied to such disk and so tending to lateral movement of the diskand weighting means and also movable athwart such axis, substantially ashereinbefore described. V

5. In a tension device comprising a support for a revoluble tension diskand a revoluble tension disk carried thereby, a tension disk which isadapted to receive weightin means for adjusting its pressure and is alowed movement athwart its axis of revolution and weighting means appliedto such disk and unsymmetrical in form and mass relatively to the axisof revolution of the disk when it is applied to such disk and so tendstolateral movement of the disk and Weighting means in revolution and alsomovable athwart such axis, substantially as hereinbefore described.

6. In a tension device comprising a support for revoluble tension disksand revoluble tension disks carried thereby, one disk which is adaptedto receive weighting means for adjusting its pressure and weightingmeans applied to such disk and having its form and mass unsymmetricalrelatively to the axis of revolution of the disk when it is applied tosuch disk and so tending to lateral movement of the disk and weightingmeans athwart such axis, substantially as hereinbefore described.

7. In a tension device comprising a support for revoluble tension disksand revoluin revolution and also movable ble tension disks carriedthereby, one disk which is adapted to receive weighting means foradjusting its pressure and is allowed movement athwart its axis ofrevolution and weighting means applied to such disk and having its formand mass unsymmetrical relatively 'to the axis of revolution of the diskwhen it is applied to such disk and so tending to lateral movement ofthe disk and 4 weighting means in revolution and also movable athwartsuch axis, substantially as hereinbefore described.

. 8. In a tension device comprising a support for a revoluble tensiondisk and a revoluble tension disk carried thereby, a tension disk whichhas its form and mass unsymmetrical in relation to its axis ofrevolution and is adapted to receive weighting means for adjusting itspressure and weighting means applied to such disk and unsym- I metricalin form and mass relatively to the axis of revolution and so tendingtolateral movement of the disk and weighting means and also movableathwart such axis, substantially as hereinbefore described.

9. In a tension device a support for a revoluble tension disk and arevoluble ten- .sion disk carried thereby, a tension disk 10. In atension device comprising a support for revoluble tension disks and tworevoluble tension disks carried thereby and having one disk with itsform and mass unsymmetrical in relation to its axis of revolution, onedisk adapted to receive weighting means for adjusting its pressure andweighting means applied to such disk and unsymmetrical in form and massrelatively to the axis of revolution and so tending to lateral movementof the disk and weighting means and also movable athwart such axis,substantially as hereinbefore described.

11. In a tension device comprising a support for revoluble tension disksand two revoluble tension disks carried thereby and having one disk withits form and mass unsymmetrical in relation to its axis of revolution,one disk adapted to receive weighting means for adjusting its pressureand allowed movement athwart its axis of revolution and weighting meansapplied to such disks and unsymmetrical in form and mass relatively tothe axis of revolution and so tending to lateral movement of the diskand weighting means in revolution and also movable athwartsuch axis,substantially as hereinbefore described.

12. In a tension device comprising a support for'revoluble tension disksand two revoluble tension disks carried thereby each of which has itsform and mass unsymmetrical in relation to its axis of revolution, onedisk adapted to receive weighting means for adjusting itspressure andweighting means applied to such disk and unsymmetrical in form and massrelatively to the axis of revolution and so tending to lateral movementof the disk and weighting means in revolution and also movable athwartsuch axis, substantially as hereinbefore described.

13. In a tension device comprising a support for revoluble tension disksand two revoluble tension disks carried thereby each of which has itsform and mass unsymmetrical in relation to its axis of revolution, onedisk adapted to receive weights for adjusting its pressure and allowedmovement athwart its axis of revolution and weighting means applied tosuch disk and unsymmetrical in form and mass relatively to theaxis ofrevolution and so tending to lateral movement of the disk and weightingmeans in revolution and also movable athwart such axis, substantially ashereinbefore described.

14. In a tension device .of the character described comprising tworevoluble disks, one disk with a projection shaped to engage a space inthe other and the other with a space surrounding such projection and ofshape and size to permit the one disk to move athwart the axis ofrevolution relatively to the other while both are always compelled torevolve turn for turn together, substantially as hereinbefore described.

15. In a tension device of the character described comprising tworevoluble tension disks and having one disk non-circular, one disk witha projection shaped to engage a space in the other and the other with aspace surrounding such projection and of shape and size to permit theone disk to move athwart the xis of revolution relatively to the otherwhile both are always compelled to revolve turn for turn together,substantially as hereinbefore described.

16. In a tension device of the character described comprising tworevoluble disks and an abutment to be touched by one of them, one diskwith a projection shaped to engage a space in the other and the otherwith a space surrounding such projection and of shape and. size topermit the one disk to move athwart the axis of revolution relatively tothe other while both are always compelled to revolve turn for turntogether, substantially as hereinbefore described.

17. In a tension device of the character described comprising tworevoluble disks and an abutment to be touched by one of them, and havingone disk non-circular, one disk with a pro ection shaped to engage aspace in the other and the other with a space surrounding suchprojection and of shape and size to permit the one disk to move athwartthe axis of revolution relatively to the other while both are alwayscompelled to revolve turn for turn together, substantially ashereinbefore described.

18. In a tension device, a support for a fixed pivot, an upwardlydirected fixed pivot on such support, an abutment on such support, atension disk with a sleeve having a hole surrounding such pivot andresting upon its apex and having an upwardly directed rojection shapedto engage a space in the ot er disk and a second tension disk mounted onthe first and having a hole surrounding such projection and of size andshape. to compel both disks to revolve turn for turn together and topermit the one disk to move athwart the axis of revolution relatively tothe other and to touch the abutment, substantially as hereinbeforedescribed.

, 19. In a tension de'ice, a support for a fixed pivot, an upwardlydirected fixed pivot on such support, a tension disk with a Sleevehaving a, hole surrounding such pivot and resting upon its apex andhaving an upwardly directed projection shaped to engage a space in theother disk and a second tension disk of non-circular form mounted on thefirst and having a hole surrounding such projection and of size andshape to compel both disks to revolve turn for turn together and topermit the one disk to move athwart the axis of revolution relatively tothe other and to touch the abutment, substantially as hereinbeforedescribed.

20. In a tension device, a support for a fixed pivot, an upwardlydirected fixed pivot on such support, an abutment on such support, atension disk with a sleeve having a hole surrounding such pivot andresting upon its-apex and having an upwardly direct'ed projection shapedto engage a space in the other disk and a second tension disk mounted onthe first and with engaging means to be brought against the abutment anda. hole surrounding such projection and of size and shape to compel bothdisks to revolve turn for turn together and to permit the one disk tomove athwart the axis of revolution relatively to the other and to allowthe engaging means to touch the abutment, substantially as hereinbeforedescribed.

In testimony, that we claim the foregoing as our invention, we havesigned our names in presence of two witnesses, this twelfth day ofOctober 1915.

FRANK ASHWORTH HOLT. GRINDROD KERSHAW.

Witnesses:

NoRWoon CHEETHAM, RUTH M. WILSON.

